| 2-driver, 2 way bookshelf bass reflex | 
                                                                            2-driver, 2-way bass reflex bookshelf | 
                                                                            2-driver, 2-way bass reflex bookshelf | 
                                                                            2-driver, 2 way bookshelf / stand mounted | 
                                    
                                
                                                            
                                                                            | 3rd order electro-acoustic at 2 kHz (tweeter/midbass) | 
                                                                            2nd-order electro-acoustic at 2.0 kHz (tweeter/mid) | 
                                                                            2nd-order electro-acoustic at 2.0 kHz (tweeter/mid) | 
                                                                            2nd order electro-acoustic at 2.0kHz | 
                                    
                                
                                                            
                                                                            | 1" (25mm) Truextent® Beryllium dome, ferro-fluid damped / cooled, Perforated Phase-Aligning (PPA™) Tweeter Lens, Finite Element Analysis (FEA) optimized pole piece assembly | 
                                                                            1” (25mm) X-PAL™ dome, ferro-fluid damped / cooled, Perforated Phase-Aligning Tweeter (PPA™) Lens | 
                                                                            1” (25mm) X-PAL™ dome, ferro-fluid damped / cooled, Perforated Phase-Aligning Tweeter (PPA™) Lens | 
                                                                            1" (25mm) X-PAL™ dome, ferro-fluid damped / cooled, Perforated Phase-Aligning (PPA™) Tweeter Lens, Finite Element Analysis (FEA) optimized pole piece assembly | 
                                    
                                
                                                            
                                                                            | +/- 2dB from 60Hz - 45kHz | 
                                                                            ±3dB from 68 Hz - 25 kHz | 
                                                                            ±3dB from 55 Hz – 25 kHz | 
                                                                            ±2dB from 57 Hz - 20 kHz | 
                                    
                                
                                                            
                                                                            | +/- 2dB from 60Hz - 20kHz | 
                                                                            ±3dB from 68 Hz - 20 kHz | 
                                                                            ±3dB from 55 Hz – 20 kHz | 
                                                                            ±2dB from 57 Hz - 17 kHz | 
                                    
                                
                                                            
                                                                            | 7" (178mm) Truextent® Beryllium driver, Perforated Phase-Aligning (PPA™) Lens, overmolded Active Ridge Technology (ART™) surrounds, SHOCK-MOUNT™ Isolation Mounting System, 1.5" high-temp tandem voice coil | 
                                                                            5-1/2” (140mm) ART™ Surround with Carbon-Infused polypropylene cone. Perforated Phase-Aligning (PPA™) Lens | 
                                                                            6-1/2” (165mm) ART™ Surround with Carbon-Infused polypropylene cone. Perforated Phase-Aligning (PPA™) Lens | 
                                                                            5.5" (140mm) X-PAL™ driver, overmolded Active Ridge Technology (ART™) surround, SHOCK-MOUNT™ Isolation Mounting System, 1.5" high-temp voice coil | 
                                    
                                
                                                            
                                                                            | 92 dB / 89 dB | 
                                                                            90 dB / 87 dB | 
                                                                            90 dB / 87 dB | 
                                                                            90 dB / 87 dB | 
                                    
                                
                                                            
                                                                            | 36Hz | 
                                                                            50 Hz (DIN) | 
                                                                            45 Hz (DIN) | 
                                                                            42 Hz (DIN) | 
                                    
                                
                                                            
                                                                            | 15 - 250 watts | 
                                                                            15 - 130 watts | 
                                                                            15 - 130 watts | 
                                                                            15 - 150 watts | 
                                    
                                
                                                            
                                                                            | 150 Watts | 
                                                                            70 watts | 
                                                                            80 watts | 
                                                                            90 watts | 
                                    
                                
                                                            
                                                                            | Compatible with 8 ohms | 
                                                                            Compatible with 8 ohms | 
                                                                            Compatible with 8 ohms | 
                                                                            Compatible with 8 ohms | 
                                    
                                
                                                            
                                                                             | 
                                                                             | 
                                                                             | 
                                                                            12.375" × 7" × 10.875" (31.4cm × 17.8cm × 27.6cm) | 
                                    
                                
                                                            
                                                                            | 17.125" × 8.875" × 13" (43.5cm × 22.5cm × 33cm) | 
                                                                            11.125" × 6.625 × 9.125" (28.2cm × 16.9 × 23.9cm) | 
                                                                            13.25" × 7.875 × 12.375" (33.5cm × 19.8 × 32.1cm) | 
                                                                             | 
                                    
                                
                                                            
                                                                            | 31 lbs. (14 kg) | 
                                                                            12.9 lbs. (5.85 kg) | 
                                                                            18 lbs. (8.17 kg) | 
                                                                            16 lbs. (7.3 kg) | 
                                    
                                
                                                            
                                                                            | High Gloss: Vanta Black, Harmony White Metallic Gloss: Aria Blue, Sonic Silver | 
                                                                            Gloss Black, Gloss White, Espresso Grain MK 2 | 
                                                                            Gloss Black, Gloss White, Espresso Grain MK 2 | 
                                                                            Gloss: Piano Black, Midnight Cherry & Gloss White. Satin: Walnut & Black Walnut |